If only they made them for 5 inch guns, they built 'em for 14 inch and up :s Madness really, they are such low angle weapons that unless an attacker flies obligingly low prior to an attack then they did nothing but bugger up the rifling for the big guns, probably explains why the Yamato's shooting was so bad at Samar, I think she's credited with MAYBE one hit if I recall.
I have heard the same thing. Part of the troble seems to been poorly trained crews and less than ideal fire control.